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Standard No. Title Price(USD) Delivery Status Add To Cart
GB 2147-1980 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 227.5-1994 Determination of selenium content in tellurium--2 3-diaminonaphthalene absorption photometric method 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 226.2-1994 Determination of antimony content in selenium--Malachite green photometric method 45 (USD) via email in 1-3 business day ABOLISHED
YS/T 226.12-2009 Methods for chemical analysis of selenium—Part 12:Determination of selenium content—Sodium thiosulphate titrimetric method 120 (USD) via email in 1-3 business day VALID
GB 2116-1980 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 37.1-1992 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 19922-2005 Standard test methods for measuring site flatness on silicon wafers by noncontact scanning via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YS/T 226.12-1994 Determination of lead content in selenium--Oscillopolarographic method 45 (USD) via email in 1-3 business day ABOLISHED
YS/T 519.3-2006 Methods for chemical analysis of arsenic The barium sulphate gravimetric method for the determination of sulphur content 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 226.3-2009 Methods for chemical analysis of selenium Part 3:Determination of aluminum content-Chrome azurol S-Cetyl trimethyl ammonium bromide absorption photometric method 120 (USD) via email in 1-3 business day VALID
YS/T 226.9-1994 Determination of chlorine content in selenium--Thiocyanate photometric method 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 227.7-1994 Determination of sulphur content in tellurium--Barium sulfate turbidimetry 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 4059-2007 Polycrystalline silicon—Examination method—Zone-melting on phosphorus under controlled atmosphere 120 (USD) via email in 1-3 business day ABOLISHED
GB 2123-1980 30 (USD) via email in 1-3 business day ABOLISHED
YS/T 226.8-2009 Methods for chemical analysis of selenium Part 8:Determination of copper content-Flame atomic absorption spectrometry 120 (USD) via email in 1-3 business day VALID
GB/T 32277-2015 Test method for instrumental neutron activation analysis (INAA) of silicon 300 (USD) via email in 1-3 business day VALID
GB 2121-1980 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 4373.3-1984 Methods for chemical analysis of arsenic;The barium sulphate gravimetric method for the determination of sulphur content 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 4373.4-1984 Methods for chemical analysis of arsenic;The dithio-diantipyrylmethane photometric method for the determination of bismuth content 45 (USD) via email in 1-3 business day ABOLISHED
YS/T 226.15-1994 Determination of selenium content in selenium--Thiosulfate volumetric method 30 (USD) via email in 1-3 business day ABOLISHED
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